Fix multiversion builds

This includes:
* Revert switch to onf-make: onf-make was never compatible with
  this repo. For now, we want to revert these changes so that the
  build can work properly again.
* Re-enable static builds: the latest updates don't require removing
  patching from voltha-system-tests or cord-tester to work. The build
  also succeeds if patching is removed, so that is a likely future
  change to those repos.
* Switch to an updated custom version of sphinx-multiversion: though
  originally forked from zdw for the purpose of making changes to the
  prep step or other functionality, none was necessary. However, the
  latest changes to the mainline sphinx-multiversion have now been
  brought into the fork, with zdw's prep additions included.

Signed-off-by: Eric Ball <eball@linuxfoundation.org>
Change-Id: I0afb08030edcae4d2e968c63ef5eb11e17085d8a
diff --git a/Makefile b/Makefile
index 447e858..fd90308 100644
--- a/Makefile
+++ b/Makefile
@@ -28,12 +28,7 @@
 ##--------------------##
 ##---]  INCLUDES  [---##
 ##--------------------##
-ifdef USE_LF_MK
-  include lf/include.mk
-else
-  venv-name ?= .venv
-  include lf/transition.mk
-endif # ifdef USE_LF_MK
+include makefiles/include.mk
 
 # You can set these variables from the command line.
 SPHINXOPTS   ?=
@@ -51,8 +46,7 @@
 
 # Other repos with documentation to include.
 # edit the `git_refs` file with the commit/tag/branch that you want to use
-OTHER_REPO_DOCS ?= bbsim ofagent-go openolt voltctl voltha-openolt-adapter voltha-openonu-adapter-go voltha-protos device-management-interface voltha-helm-charts
-# Temporarily disabled: cord-tester voltha-system-tests
+OTHER_REPO_DOCS ?= bbsim ofagent-go openolt voltctl voltha-openolt-adapter voltha-openonu-adapter-go voltha-protos device-management-interface voltha-helm-charts voltha-system-tests cord-tester
 
 ifdef NO_OTHER_REPO_DOCS
   # Inhibit pulling in external repos.
@@ -61,7 +55,7 @@
 endif
 
 # Static docs, built by other means (usually robot framework)
-# STATIC_DOCS    := _static/voltha-system-tests _static/cord-tester
+STATIC_DOCS    := _static/voltha-system-tests _static/cord-tester
 
 # Why is existing source Makefile PHONY (?)
 .PHONY: help test lint reload Makefile prep
@@ -162,17 +156,17 @@
 	GIT_SUBDIR=`grep '^$@ ' git_refs | awk '{print $$2}'` ;\
 	cp -r repos/$(@)$$GIT_SUBDIR $@ ;\
 
-# # Build Robot documentation in voltha-system-tests and copy it into _static.
-# _static/voltha-system-tests: | $(OTHER_REPO_DOCS)
-# 	make -C voltha-system-tests gendocs
-# 	mkdir -p $@
-# 	cp -r voltha-system-tests/gendocs/* $@
-#
-# # Build Robot documentation in cord-tester and copy it into _static.
-# _static/cord-tester: | $(OTHER_REPO_DOCS)
-# 	make -C cord-tester gendocs
-# 	mkdir -p $@
-# 	cp -r cord-tester/gendocs/* $@
+# Build Robot documentation in voltha-system-tests and copy it into _static.
+_static/voltha-system-tests: | $(OTHER_REPO_DOCS)
+	make -C voltha-system-tests gendocs
+	mkdir -p $@
+	cp -r voltha-system-tests/gendocs/* $@
+
+# Build Robot documentation in cord-tester and copy it into _static.
+_static/cord-tester: | $(OTHER_REPO_DOCS)
+	make -C cord-tester gendocs
+	mkdir -p $@
+	cp -r cord-tester/gendocs/* $@
 
 ## -----------------------------------------------------------------------
 ## Intent: Build docs for the current branch
@@ -280,16 +274,8 @@
 	    'Display WARNING strings buried in sphinx output'
 
 ## -----------------------------------------------------------------------
-## Intent: Checkout external repository dependencies
-## -----------------------------------------------------------------------
-init :: git-submodules
-
-git-submodules:
-	git submodule update --init --recursive
-
-## -----------------------------------------------------------------------
 ## Intent: Display make help footer
 ## -----------------------------------------------------------------------
-include $(ONF_MAKEDIR)/help/trailer.mk
+include makefiles-orig/help/trailer.mk
 
 # [EOF]